Incrustation /(?)/

In·crus·ta·tion

Incrustation

n.
  1. The act of incrusting, or the state of being incrusted.
  2. A crust or hard coating of anything upon or within a body, as a deposit of lime, sediment, etc., from water on the inner surface of a steam boiler.
  3. A covering or inlaying of marble, mosaic, etc., attached to the masonry by cramp irons or cement. (Arch.)
  4. Anything inlaid or imbedded. (Fine Arts)